199999990222205 has 16 divisors (see below), whose sum is σ = 246485661130800. Its totient is φ = 155696274224640.

The previous prime is 199999990222199. The next prime is 199999990222231. The reversal of 199999990222205 is 502222099999991.

It can be written as a sum of positive squares in 8 ways, for example, as 72730297578436 + 127269692643769 = 8528206^2 + 11281387^2 .

It is not a de Polignac number, because 199999990222205 - 2⁴² = 195601943711101 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253917310 + ... + 1254076799.

It is an arithmetic number, because the mean of its divisors is an integer number (15405353820675).

Almost surely, 2^{199999990222205} is an apocalyptic number.

It is an amenable number.

199999990222205 is a deficient number, since it is larger than the sum of its proper divisors (46485670908595).

199999990222205 is a wasteful number, since it uses less digits than its factorization.

199999990222205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507994544.

The product of its (nonzero) digits is 382637520, while the sum is 77.

The spelling of 199999990222205 in words is "one hundred ninety-nine trillion, nine hundred ninety-nine billion, nine hundred ninety million, two hundred twenty-two thousand, two hundred five".